RESUMO
Introduction: Adnexal mass lesions are common among women which has a prevalence of 0.17%- 5.9% in asymptomatic women and 7.1%-12% in symptomatic women of all ages. Diagnosing the malignancy at early stage is difficult among adnexal masses. Early intervention and management can save many women in reproductive age group with good outcome. Aim: To find out the validity of Ultrasonography (USG) and Magnetic Resonance Imaging (MRI) in evaluation of uterine adnexal masses. Materials and methods: A Cross-sectional study of 45 subjects with suspected various adnexal masses over a period of one year from November 2019 to November 2020 in the Department of Radiodiagnosis and Obstetrics and Gynecology, were included. The data was entered in master chart then analysed using Statistical Package for the Social Sciences (SPSS) 19. Chi-square test has been used to compare the sensitivity of Tran abdominal Ultrasound (TAUS) and MRI scan with level of significance of <0.05. Predictive accuracy was measured using ROC curve. Results: The subject’s age ranged from 16 to 76 years with a mean age of 37.64. Ovary was the most common site of origin of adnexal masses. Most common adnexal masses on HPE were serious cystadenocarcinoma in malignant cases. USG showed an overall sensitivity of 58.3%, specificity of 100% PPV-100% and NPV-86.8% in comparison to the histopathological examination (HPE). Sensitivity, Specificity, PPV, NPV of MRI was 91.7%, 100%, 100% and 97.1%, respectivelyConclusion: USG is the initial choice of imaging modality for evaluation of adnexal mass lesions. But imaging with MRI has high accuracy in identifying the origin of a mass, characterising its tissue content, Vascularity, Septal Thicknessused in staging and preoperative plan. Sensitivity and diagnostic accuracy for MRI is higher than USG.